Ignition distributor for combustion engines



. Sept. 29, 1936.

T. PILLA IGNITION DISTRIBUTOR FOR COMBUSTION ENGINES Filed April 16, 1936 INVENTOR TONY Plu ATTORNEY Patented Sept. 29, 1936 UNITED STATES PATENT OFFICE IGNITION DISTRIBUTOR FOR COMBUS- TION ENGINES This invention relates to new and useful improvements in an ignition distributor for combustion engines.

The invention has for an object the construction of an ignition distributor which is particularly adapted for dual ignition and is capable of being accurately timed while the engine is runnmg.

More specifically, the invention contemplates the arrangement in an ignition distributor of a plate movably mounted and supporting a breaker point assembly, said plate to be adjustably held in various positions to synchronize the breaker point assembly operation with a dual breaker point, assembly fixedly mounted in the distributor housing.

A further object of the invention resides in the provision of a lug portion projecting from said plate and extending out through an opening in the distributor housing so that the plate may be adjusted from the exterior of the housing while the engine is running.

Still further the invention proposes the provision of a simple and efficient means for holding the plate in various adjusted positions.

Another object of the invention is the construction of a device as mentioned which is simple and durable and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention and of the objects and advantages thereof reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:-

Fig. 1 is a horizontal sectional view of an ignition distributor constructed according to this invention, with some schematic wiring applied.

Fig. 2 is a fragmentary sectional View taken on the line 22 of Fig. 1.

The ignition distributor, according to this invention, includes a distributor housing II] which has a side wall formed with a slot II. The conventional driven cam I2 is disposed within the distributor housing and is adapted to operate the conventional breaker point assembly units I4 and I5. A plate I6 is movably mounted within the housing It and supports one of the breaker units assembly, namely, the unit I5. The dual unit I4 is mounted upon the housing Ill.

The plate I6 has a lug portion I 6a which projects through the opening II. A means is associated with the plate and the distributor housing for fixedly holding the plate in various adjusted positions concentric with the cam I2. This means comprises several screws I1 extending through arcuate slots I8 formed in the plate I6. The lug portion I Be is also formed with an arcuate slot 5 I8 through which a fastening screw II passes.

Lock washers I 9 are disposed beneath the heads of the screws I! and I1. These look washers are capable of holding the plate I6 with suflicient friction so that it may be manually moved, while the screws are slightly loose. It is thus possible to shift the plate I6 and correctly time the engine. After the correct timing has been established the screws I1 and II are turned down as far as is possible.

- The breakerwpoint assembly I 4 comprises a breaker arm I4a mounted at one end upon an insulation bushing I41 which is pivotally mounted by a pintle Mb. Intermediate of its ends the arm is formed with a projection Me which engages 20 against the cam I2. The extremity of the arm Ma is provided with a contact Md which is adapted to engage a stationary contact Me. This latter contact is connected with a terminal M The breaker unit assembly l5 comprises an 25 arm I5a mounted at one end upon an insulating bushing I51 which is pivotally mounted upon a pintle I5b. Intermediate of its ends the arm I5a is provided with a projection I5c which engages the cam I2. The free end of the arm I5a is pro- 30 vided with a contact I5d which is capable of engaging a stationary contact I56. This latter contact connects with a terminal I 5 The pintle I5b is mounted on the plate I6. The terminal I5 is also mounted on the plate I6.

Springs 20 are mounted by brackets 20a and 20b on the housing I0 and plate I6 and engage the arms Ma and I5a and are secured thereto by clips 2|. These springs act to urge the arms so that the projections thereon engage the cam I2, 40 and when the cam permits, so that the contacts engage each other. The leads from the coil are indicated by reference numerals 22. These leads are shown connected with the conventional condenser 23.

The arcuate slots I8 and I8 in the plate I6 are concentric with the center of the cam I2. Thus, when the plate I6 is shifted, its distance from the cam is not altered but merely the position relative to the actuating portions of the cam. A shield 24, 50 preferably fine wire gauze or other type of air filters, is mounted upon the lug portion I6a and extends over the opening I I. This filter material prevents dust from entering the distributor. A boss Illa projects from the housing I0 and extends 55 while the engine is running makes it possible to obtain a more accurate timing. and thus smoother It goes without saying running of the engine. that the engine will then have more power and be capable of delivering more mileage ifor a fixed.

quantity of gasoline or other-.fuel's While I have illustrated and described my invention with degree of particularity, I realize that in practice various. alterations therein may. be

made... Itherefore reserve the'right and privilege of changing. the form of the details of construction or .otherwise altering the arrangement of the correlated parts without departing from the.

spirit or the scope of the appended claims..

Having thus described my invention, what I claim as new, and desire. tov secure byJUnited States. Letters Patent is: e r 1. .An ignition distributor for combustion engines comprising .a distributor housing, a driven cam within said housing, a breaker point assembly fixedly mounted within said housing and operated by. said cam, a plate movably mounted within said housing, a dual breaker point assembly mounted upon said plate, and means for holding said plate in adjusted positions, said plate' being limited to be moved concentric with said cam, and a lug portion projecting from said plate through an opening in the distributor housing.

2. An ignition distributor for combustion engines comprising a distributor housing, a driven cam within said housing, a breaker point assembly fixedly mounted within said housing and operated by said cam, a plate movably mounted within said housing, a dual breaker point assembly mounted upon said plate, and means for holding said plate in adjusted positions, said plate being limited to be moved concentric with said cam, anda lug portion projecting from said plate through an opening in the distributor housing, anair f lter element mounted upon said lug portion and extending over said opening.

3. Anignition-distributor for combustion en- Hgines comprising a distributor housing, 'a driven cam within said housing, a breaker point assembly fixedly mounted within said housing and operated by saidcam, a plate movably mounted within said housing, a dual breaker point assembly mounted upon said plate, and means for holding said plate in adjusted positions, comprising screws engaging through slots. in said plate and engagingv into said housing, and lock washers beneath the heads of said screws, said plate having 2. lug portion extending througha slot in said housing, and a screw engaging through an openingin said lug portion and threadedly engaging aboss from said housing, .alock washer being.

disposed beneath a head-of said latter-mentioned screw.

TONY PILLA. 

